Skew suppression method and optical transmission system
First Claim
1. A method for suppressing a skew between a first channel and a second channel in an optical transmission system having a transmitter that transmits an optical signal with the first channel and the second channel and a receiver that receives the optical signal, the method comprising:
- controlling dispersion added to the optical signal to be larger than a specified amount;
controlling a delay time of at least one of the first channel and the second channel in the receiver based on a quality of the optical signal monitored in the receiver to suppress the skew between the first channel and the second channel in the receiver; and
controlling a delay time of at least one of the first channel and the second channel in the transmitter based on a quality of the optical signal monitored in the receiver to suppress the skew between the first channel and the second channel in the transmitter.
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Accused Products
Abstract
A method for suppressing a skew between a first channel and a second channel in an optical transmission system having a transmitter that transmits an optical signal with the first channel and the second channel and a receiver that receives the optical signal, the method includes: controlling dispersion added to the optical signal to be larger than a specified amount; and controlling a delay time of at least one of the first channel and the second channel in the receiver based on a quality of the optical signal monitored in the receiver to suppress the skew between the first channel and the second channel in the receiver.
39 Citations
8 Claims
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1. A method for suppressing a skew between a first channel and a second channel in an optical transmission system having a transmitter that transmits an optical signal with the first channel and the second channel and a receiver that receives the optical signal, the method comprising:
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controlling dispersion added to the optical signal to be larger than a specified amount; controlling a delay time of at least one of the first channel and the second channel in the receiver based on a quality of the optical signal monitored in the receiver to suppress the skew between the first channel and the second channel in the receiver; and controlling a delay time of at least one of the first channel and the second channel in the transmitter based on a quality of the optical signal monitored in the receiver to suppress the skew between the first channel and the second channel in the transmitter. - View Dependent Claims (2, 3, 4)
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5. A method for suppressing a skew between a first channel and a second channel in at least one of a transmitter that transmits an optical signal with the first channel and the second channel and a receiver that receives the optical signal, the method comprising:
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controlling dispersion added to the optical signal to be larger than a specified amount; and performing at least one of first control to control a delay time of at least one of the first channel and the second channel in the receiver based on a quality of the optical signal monitored in the receiver to suppress the skew between the first channel and the second channel in the receiver, and second control to control a delay time of at least one of the first channel and the second channel in the transmitter based on a quality of the optical signal monitored in the receiver to suppress the skew between the first channel and the second channel in the transmitter.
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6. An optical transmission system having a transmitter that transmits an optical signal with a first channel and a second channel and a receiver that receives the optical signal, comprising:
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a dispersion adder that adds dispersion to the optical signal; and a controller that controls a delay time of at least one of the first channel and the second channel in the receiver based on a quality of the optical signal monitored in the receiver to suppress the skew between the first channel and the second channel in the receiver, and controls a delay time of at least one of the first channel and the second channel in the transmitter based on a quality of the optical signal monitored in the receiver to suppress the skew between the first channel and the second channel in the transmitter. - View Dependent Claims (7, 8)
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Specification